Teacher: Mr. A. Goodison 1 2 nd Year Science, Christmas 2018 Time allowed: 1 ½ hours Mr. A. Goodison Student Name _____________________ Answer all questions in the spaces provided. Good luck! Question Marks Awarded 1 18 2 53 3 51 4 24 5 30 6 42 Total 218 Grade descriptor A photo of the planet Saturn, taken by the Cassini space probe. The tiny bright dot at the arrow is Earth.
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Teacher: Mr. A. Goodison
1
2nd Year Science, Christmas 2018 Time allowed: 1 ½ hours
Mr. A. Goodison
Student Name _____________________
Answer all questions in the spaces provided.
Good luck! Question Marks Awarded 1 18 2 53 3 51 4 24 5 30 6 42 Total 218 Grade descriptor
A photo of the planet Saturn, taken by the Cassini
space probe. The tiny bright dot at the arrow is Earth.
Teacher: Mr. A. Goodison
2
Question 1 (18) The cartoon below shows some students working in a school lab. List the safety hazards and for each hazard, give a possible solution or rule which should be followed to make the situation safe.
From the picture list three Hazards in the lab and state one way of reducing the risk of harm for each hazard (18)
Safety Hazard Solution or rule
Question 2 (53)
The diagram below shows a simple model of a solar eclipse (an eclipse of the Sun). In the diagram, write the letter E for Earth, M for The Moon and S for The Sun (9)
Two weeks before or after a solar eclipse sometimes there is a lunar eclipse. Draw a labelled diagram to show a model of a lunar eclipse. (6)
Teacher: Mr. A. Goodison
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The following image (Image 1) gives the different phases of the moon
Image 1: Moon Phases
The next image (Image 2) below shows the path of the Moons orbit around the Earth and the position of the sun (not to scale). Using both Image 1 and 2, Draw a dot on the Moons orbit to represent the Moon for each phase of the Moon. The waxing crescent moon has been done as an example. (14)
Image 2. Moon orbit positon
Why can we see the Moon even though it does not produce any light?
Below is an image (Image 3) of the Earth and Sun (not to scale). The Earth is in two different positions (A and B) at different times of the year.
Image 3: Sun rays striking Earth at different times of the year
Ireland is in the Northern Hemisphere and Australia is in the Southern Hemisphere. What season (either Summer or Winter) are these countries in for the below questions.
Ireland season in position A_______________________ (3)
Australia season in position A_____________________ (3)
Ireland season in position B_______________________ (3)
Australia season in position B_____________________ (3)
How many months would it take Earth to travel from position A to position B? ________________(3)
How long does it take for the Earth to rotate on its axis once?______________(3)
Teacher: Mr. A. Goodison
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Question 3 (51)
Some chemical reactions proceed quickly while some proceed at a slower rate. The passage below explains the factors that speed up the rate of a reaction.
The terms below are missing from the passage.
Collisions Activation energy Temperature Concentration Catalyst
In the spaces provided, write the missing terms. (15)
__________________________ is a measure of the amount of particles in a solution.
Surface area is a measure of how much solid is exposed to reaction, and therefore how many__________________________ take place
__________________________ affects the energy that particles have and how quickly they collide. It also affects how effective collisions are.
The energy required for any reaction to take place is called __________________________. The presence of a __________________________ speeds up a chemical reaction. It works by lowering the activation energy.
A student carried out an experiment to investigate the effect of temperature on the rate of production of a certain gas. The first reaction happened at 20 °C and the second one at 30 °C.
In both cases the gas produced was passed through water as it was collected. This was to ensure that the gas was always at room temperature (a constant) when its volume was measured.
The student recorded the following results:
Using the graph paper below, draw graphs for both sets of results (24)
Teacher: Mr. A. Goodison
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State two conclusions the student could have drawn from the results (12)